摘要:
There are disclosed a nonlinear optical element capable of second harmonic generation comprising a crystalline inclusion complex of a lattice-forming host compound crystallized with continuous channel cavities in the presence of a nonlinearly polarizable guest compound in a noncentrosymmetric space group, said guest compound having specified properties, and both said guest and host being selected from specified classes; a nonlinear optical device; a method of generating second harmonic radiation; and an electro-optic modulator.
摘要:
Disclosed is an insecticidal composition comprising by weight based on total weight of composition (a) from about 9 to about 91% of one or more anthranilic diamide insecticides; and (b) from about 9 to about 91% of a branched copolymer component having water solubility or dispersibility at least about 5% by weight at 20° C., wherein: the branched copolymer component comprises one or more branch segments attached to linear backbone segment; the branch segments comprise at least two repeating monomer units and have number average molecular weight (Mn) at least about 1,000; the branched copolymer component comprises hydrophilic groups; and ratio of component (b) to component (a) is about 1:10 to about 10:1 by weight. Also disclosed is a geotropic propagule coated with insecticidal composition. Further disclosed is a liquid composition comprising the insecticidal composition, and method for protecting a geotropic propagule and plant derived therefrom a phytophagous insect pest.
摘要:
This invention relates to the preparation of polyamide block copolymers by sequential monomer addition. More particularly, it relates to catalysts capable of copolymerizing not only cyclic amides, but other monomers such as cyclic esters and epoxides as well, using sequential addition so as to produce useful and novel block copolymers.
摘要:
Disclosed herein are novel polymer-tethered ligands, metal complexes comprising these ligands, and the use of these complexes as chain transfer catalysts to control the molecular weight of oligomeric and polymeric materials produced in a radical polymerization process. The materials made by the processes disclosed herein have significantly reduced color, making them suitable for a wide range of color-critical end-uses, including automotive coatings.
摘要:
Mixtures or adducts of N-heterocyclic carbenes with metal amides or metal alkoxides are effective catalysts for the polymerization of cyclic amides. The catalysts are stable at polymerization temperatures, and the polymerization is rapid, resulting in high monomer conversion, high molecular weight, and a mechanically sound material.
摘要:
A mobile handset call testing system and method. Mobile wireless handsets are tested under the control of a controller. The controller causes an autodialler to dial a call request on a transmitting handset. The call request is received by a wireless network and communicated to a receiving handset. RF sensors at the transmitting and receiving handsets provide the controller with signals indicative of the RF transmissions emanating from the handsets. The controller determines whether the outgoing call request and/or the incoming call request are successful based upon the detected RF transmissions.
摘要:
Metal amide and metal alkoxide species have been found to catalyze the ring opening polymerization of macrocyclic polyester oligomers. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material.
摘要:
N-heterocyclic carbenes are effective catalysts for the polymerization of macrocyclic polyester oligomers. The catalysts provide rapid polymerization, high monomer conversion, high molecular weight, and a mechanically sound material.
摘要翻译:N-杂环卡宾是大环聚酯低聚物聚合的有效催化剂。 催化剂提供快速聚合,高单体转化率,高分子量和机械声学材料。 “img id =”custom-character-00001“he =”7.53mm“wi =”135.93mm“file =”US20070252311A1-20071101-P00999.TIF“img-content =”character“img-format =”tif“/>
摘要:
Metal amide species have been found to catalyze the ring opening polymerization of cyclic amides. The reactions do not require high vacuum or a highly reactive activating species and can be carried out at high temperatures.